Allowing laptop with card reader connection through USB 3.0 Port and providing extra 4 USB ports to connect with other USB devices.- Expansion with 4 USB ports for your computer or laptop- 4x USB 3.0-A Buchse, 1x USB-C male cable- Compliant to USB 3.0 / USB 2.0 / USB 1.1 specification- Support USB 3.1 Gen 1 standard and high-speed transfer rate up to 5 Gbps- Compatible with Mac OS / Windows / Chrome OS / Android / Linux- Plug & Play- Color: Grey